The HH425 has the same great VHF radio features as the MR HH325 VP. In addition, it has Cobra’s exclusive Rewind-Say-Again feature, which uses a digital voice recorder to play back up to the last 20 seconds of audio. Other features include GMRS Channel Dual-Band functionality, a 1900 mAh Lithium Ion Polymer Battery, S.A.M.E. Weather Alert Filtering and a Rapid 3-4 hour Charger. This is a professional quality VHF radio but it is also the world’s first combination VHF/GMRS radio. GMRS (General Mobile Radio Service) is the modern standard in consumer grade two-way communications. It's 10 times more powerful than the FRS competition! This unit includes all of the features that have made Cobra GMRS radios number one like privacy codes, patented VibrAlert®, VOX hands free operation, selectable call tones, Roger Beep and advanced GMRS scanning. You can talk to GMRS users on the dock or ashore, and easily switch to the VHF band for routine or emergency vessel-to-vessel or vessel-to-shore communication. In the Box MR HH425 Marine VHF Radio AA Alkaline Battery Tray LiON Battery Pack Rapid-Charge Locking Desktop Charger Wrist Strap Spring Loaded Swiveling Belt Clip Instruction Manual